27743280919 has 2 divisors, whose sum is σ = 27743280920. Its totient is φ = 27743280918.

The previous prime is 27743280913. The next prime is 27743280923. The reversal of 27743280919 is 91908234772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27743280919 - 2¹⁹ = 27742756631 is a prime.

It is a super-2 number, since 2×27743280919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27743280913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13871640459 + 13871640460.

It is an arithmetic number, because the mean of its divisors is an integer number (13871640460).

Almost surely, 2^27743280919 is an apocalyptic number.

27743280919 is a deficient number, since it is larger than the sum of its proper divisors (1).

27743280919 is an equidigital number, since it uses as much as digits as its factorization.

27743280919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 27743280919 in words is "twenty-seven billion, seven hundred forty-three million, two hundred eighty thousand, nine hundred nineteen".